Bug 402198

Summary: Crash when adjusting widgets
Product: [Frameworks and Libraries] frameworks-kdeclarative Reporter: Alex Obenza <alex.obenza>
Component: generalAssignee: Marco Martin <notmart>
Status: RESOLVED DUPLICATE    
Severity: crash CC: kde, kdelibs-bugs, nate, os9dude, plasma-bugs, techxgames
Priority: NOR Keywords: drkonqi
Version: unspecified   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Alex Obenza 2018-12-16 17:21:46 UTC 
Application: plasmashell (5.14.4)

Qt Version: 5.12.0
Frameworks Version: 5.53.0
Operating System: Linux 4.19.8-arch1-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:

I was readjusting widgets after they had been moved into the main monitor by the unusual behavior described below and repositioned due to the panel in my main monitor displacing them.

- Unusual behavior I noticed:

I recently started up the X server when I noticed that one of my monitors hadn't loaded properly. All of the widgets and wallpapers from that monitor were on my main monitor, and the other monitor was a black screen. I could move my mouse into the monitor, but no menu would show up when I right clicked. This problem was resolved when I unloaded and reloaded that specific monitor.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7c32b7e5c0 (LWP 1256))]

Thread 30 (Thread 0x7f7c167fe700 (LWP 1805)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c39fe34cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f7c39fe373c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 29 (Thread 0x7f7ba93fa700 (LWP 1799)):
#0  0x00007f7c37f79c21 in poll () at /usr/lib/libc.so.6
#1  0x00007f7c3627dee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f7c3627dfce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7c384ac5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f7c3845558c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7c382995c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f7c39c95b89 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 28 (Thread 0x7f7c00a03700 (LWP 1539)):
[KCrash Handler]
#6  0x00007f7c38b6d095 in QOpenGLShaderProgram::setUniformValue(int, QMatrix4x4 const&) () at /usr/lib/libQt5Gui.so.5
#7  0x00007f7c223bac5b in  () at /usr/lib/qt/qml/org/kde/kquickcontrolsaddons/libkquickcontrolsaddonsplugin.so
#8  0x00007f7c384813e0 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#9  0x00007f7c3a037f33 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib/libQt5Quick.so.5
#10 0x00007f7c39fdf940 in  () at /usr/lib/libQt5Quick.so.5
#11 0x00007f7c39fe36f8 in  () at /usr/lib/libQt5Quick.so.5
#12 0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#13 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 27 (Thread 0x7f7ba9ffb700 (LWP 1495)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c39fe34cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f7c39fe373c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 26 (Thread 0x7f7baa7fc700 (LWP 1494)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c39fe34cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f7c39fe373c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 25 (Thread 0x7f7baaffd700 (LWP 1467)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 24 (Thread 0x7f7bab7fe700 (LWP 1466)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#12 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#13 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 23 (Thread 0x7f7babfff700 (LWP 1465)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#13 0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#14 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#15 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 22 (Thread 0x7f7bc0ff9700 (LWP 1464)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7f7bc17fa700 (LWP 1463)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7f7bc1ffb700 (LWP 1462)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#12 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#13 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7f7bc27fc700 (LWP 1461)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#13 0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#14 0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#15 0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#16 0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#17 0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#18 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#19 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f7bc2ffd700 (LWP 1460)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#13 0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#14 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#15 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f7bc37fe700 (LWP 1459)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f7bc3fff700 (LWP 1458)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#13 0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#14 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#15 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f7be4df9700 (LWP 1457)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#13 0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#14 0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#15 0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#16 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#17 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f7be55fa700 (LWP 1456)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#13 0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#14 0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#15 0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#16 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#17 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f7be5dfb700 (LWP 1455)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#13 0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#14 0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#15 0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#16 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#17 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f7be65fc700 (LWP 1454)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f7be6dfd700 (LWP 1453)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f7be75fe700 (LWP 1452)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c148bc469 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7c148c0339 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7c148c0392 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7c148bb52d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7c148be389 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f7be7fff700 (LWP 1442)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c39fe34cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f7c39fe373c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f7c01524700 (LWP 1428)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c39fe34cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f7c39fe373c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f7c02c9b700 (LWP 1426)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c39fe34cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f7c39fe373c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f7c04315700 (LWP 1418)):
#0  0x00007f7c37f79c21 in poll () at /usr/lib/libc.so.6
#1  0x00007f7c3627dee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f7c3627dfce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7c384ac5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f7c3845558c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7c382995c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f7c05ced35a in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#7  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f7c16fff700 (LWP 1407)):
#0  0x00007f7c3622c414 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f7c36274aef in g_main_context_query () at /usr/lib/libglib-2.0.so.0
#2  0x00007f7c3627de5c in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7c3627dfce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f7c384ac5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7c3845558c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f7c382995c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f7c39f5be5b in  () at /usr/lib/libQt5Quick.so.5
#8  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f7c21ead700 (LWP 1406)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c39fe34cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f7c39fe373c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f7c2adee700 (LWP 1376)):
#0  0x00007f7c37f79c21 in poll () at /usr/lib/libc.so.6
#1  0x00007f7c3627dee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f7c3627dfce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7c384ac5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f7c3845558c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7c382995c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f7c39c95b89 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f7c2bfff700 (LWP 1324)):
#0  0x00007f7c3627d8cc in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#1  0x00007f7c3627de06 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f7c3627dfce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7c384ac5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f7c3845558c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7c382995c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f7c38d33ba6 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f7c3829a9cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f7c371a2a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f7c37f84b23 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f7c32b7e5c0 (LWP 1256)):
#0  0x00007f7c371a8afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7c382a0adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7c382a0bca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f7c39fe04c3 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f7c39fe10da in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f7c3a0443b6 in QQuickWindow::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#6  0x00007f7c38f94e34 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#7  0x00007f7c38f9c671 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#8  0x00007f7c384568f9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#9  0x00007f7c3881ca88 in QPlatformWindow::windowEvent(QEvent*) () at /usr/lib/libQt5Gui.so.5
#10 0x00007f7c38f9c774 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#11 0x00007f7c384568f9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#12 0x00007f7c384ab955 in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#13 0x00007f7c384ac21a in  () at /usr/lib/libQt5Core.so.5
#14 0x00007f7c3627c3cf in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#15 0x00007f7c3627df89 in  () at /usr/lib/libglib-2.0.so.0
#16 0x00007f7c3627dfce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#17 0x00007f7c384ac5a9 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#18 0x00007f7c3845558c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#19 0x00007f7c3845d896 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#20 0x00005578616ddd2e in  ()
#21 0x00007f7c37ead223 in __libc_start_main () at /usr/lib/libc.so.6
#22 0x00005578616de1de in _start ()
[Inferior 1 (process 1256) detached]

Reported using DrKonqi
Comment 1 David Edmundson 2018-12-17 12:41:11 UTC 
Relevant part inline:

Thread 28 (Thread 0x7f7c00a03700 (LWP 1539)):
[KCrash Handler]
#6  0x00007f7c38b6d095 in QOpenGLShaderProgram::setUniformValue(int, QMatrix4x4 const&) () at /usr/lib/libQt5Gui.so.5
#7  0x00007f7c223bac5b in  () at /usr/lib/qt/qml/org/kde/kquickcontrolsaddons/libkquickcontrolsaddonsplugin.so
#8  0x00007f7c384813e0 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#9  0x00007f7c3a037f33 in QQu

clearly the plotter.
Comment 2 David Edmundson 2019-01-23 18:31:36 UTC 
*** Bug 402466 has been marked as a duplicate of this bug. ***
Comment 3 David Edmundson 2019-03-19 16:42:14 UTC 
*** Bug 405653 has been marked as a duplicate of this bug. ***
Comment 4 David Edmundson 2019-03-28 11:47:22 UTC 

*** This bug has been marked as a duplicate of bug 403453 ***